Greanse-gun connection



may 13 1924, L fi i H. w. SANFQRD GREASE GUN CONNECTION Filed Sept. 1. 1923 Zed 13,

hy A motion oressnre hheroio through the grease gen eonneclzion. And usually the i niernher hes n heed or legs to he engeg the connection. the present inveniion, she connection in cludes e hoolofoini menioer adapted to enthe heed or on the fzrensmission member. The ohjecl; of this invenhion is to provide convenient and oien; nieens for moving the connection nozzle to its seer; on the transmission member eiter the connecfizion has heen placed into nosition.

in the aoooni oenying drewings,

Fig. 1 is a side elevation of a mechanism emhodying my improvement;

Fig. 2 is a longitudinal, upright section of the mechanism shown by Fig. 1;

Fig. 3 is an upri ht section on the line, 3-3, of Fig. 2, 100 ing toward the right:

Fig. 4% is an elevation, similar to Fig.1, of another form of the mechanism;

Fig. 5 is a detail view of a transmission member in'xunother. form.

Referring first to Figs. 1, 2 and 3 of said drawings, A, is a transmission member which is in the form of e tubular screw plug threaded externally and having a head, A, and a valve ball, A which is surrounded by a face, A", against which the nozzle of the connection is to beer.

The forward or discharge end, B, of the nozzle, B, is to he pressed against the face,

A around the valve hell, A end then grease is to he forced through the tube, D,

a and ihe nozzle, 3, into and ihrongh the sransmission xnemher, A. y

The body of the nozzle,- B," is cylindrical, and on its right or reer end it has on intenorlyscrew threaded sleeve or socket, B

to the transmission member.

, oi 1e 1 ozzle is s. e n

or held-er, enter or hand ided l nleced s member, A, forward she Wed, AF, off said member, the opening in one hook heing smaller than the head,

of the barrel, 4), @areliel to the nozzle and sway from the transmission member.

When the barrel, Q, hes been ehns eyoplied to the lirensmission member, the nozzle, B, end she erss carried thereby are to he moved fforwaror toward the trensinission member until the discharge end, B of the nozzle hears so firmly against the face, A, of the transmission member as to prevent leaks e of grease hetween said nozzle and said ace when pressure is applied throu h the tube, D, for driving grease through the nozzle and the transmission member.

The parts are to be so proportioned as to leave between the hook, C and the end, 13 of the nozzle only as much space as is needed for conveniently applying the hook When the barrel and the hook have been applied'to the transmissionmember, the nozzleis to he given-its forward movement into working position by operatonoontrolled means as Will now be described.

A. link-form wed e member, E, surrounds in order that seiol head may resist nioveineniz she barrel, (3, and t e nozzle, the barrel heing one ewey at opposite sides at C ,,end the hody of zhe nozzle being cut away at B in the some plans, to receive the ides of the link-form wedge member, E. cutting irv forms a channel at each side of the barrel and nozzle in which the member, E, may slide transversely to the axis of the nozzle.

An adjustin ring, C is threaded around the rear or rig t hand end of the barrel, C, in position to bear against the member, E. By turnin said ring, its position on the holder wil be shifts and by that means the distance through which the member, E, may move awn; from the hook, C of the barrel is varie .Thus this ring forms an adjustable abutment for the cam member. On each face, B, of the nozzle (which faces are exposed by cutting away the wall of the holder, 0, as shown in Figs. 1 and 3) is a fixed stud, B. At each side of the member, E, the forward edge is so cut as to form an inclined edge or face, E, adapted to gengage the adjacent stud, B. Said faces, con stitute cam or wed e faces. Between the ring, G and the soc et member, Bflanexandin coiled 5 ring, 0, surrounds the dy of the nozzl; and tends to relatively push or press the barrel, C, away from the socket member, B whereby the maximum distance between the hook, C and the forward end of the nozzle is attained. But such movement is limited by engagement between the studs, B', and the cam faces, E The maximum of that movement is reached when the link member, E, has been shifted transversely to bring the rearmost part of the cam faces, E, into position to engage the lugs, B, as is shown in El 1. If now the cam member, E, is presse the pro er direction, said member will force the stu s, B, and the nozzle forward toward the transmission member A. The member, E, is so laced and so roportioned as to adapt it to e engaged-at its outer end by the thumb of the operators hand which holds the connection. That hand may grasp the connection and move it to apply the hook, C, to the transmission member and then, by the thumb, press the member, E, transverselyuntil such movement is arrested by contact of the nozzle end, B, with the face, A", of the transmission member. If, after this movement has proceeded as far as is possible with the pressure of the thumb, the operator desires to make the engagement between the nozzle and the transmission member with still eater force, he can now release the hand rom the connection (the connection now being held on the transmission member by the hook and nozzle) and merely engage the ring or sleeve, C, and turn it for movement. toward the transmission member, whereby the link member, E, is forced toward the transmission member. The pitch of the threads on the ring, C and the barrel may be much lower, than the pitch of the cam faces, E whereby relatively small power applied to said ring will cause large pressure by the transversely in weasel ring against the link member, E. When the link memberis moved in the reverse direction, the spring, C, will cause the rearward;

movement or retreat of the nozzle and hold the nozzle in its rear position.

In the form shown by Fig. 4, the spring, C, is omitted and the link member, E, 18 provided with a diagonal slot into which extend the lugs, B. This slot presents two opposing cam faces, E and E {Pressing the member, E, down, as shown in Fig. 4 will cause the cam face, E to force the forward movement of the nozzle. Thereafter a reverse movement will cause the cam faces, E to force the nozzle to retreat toward the right and remain in such position.

In Fig. 5, the transmission member has lugs, A, in lieu of the head, A to be engaged by the barrel.

i n either form of the connection, its operation is under control of one hand of the operator. On automobiles and other structures, often the space through which the transmission member is to be reached is so limited as to barely admit the connection and one hand and often there is not enough room to rotate the barrel and the hand for engaging the barrel or moving the nozzle forward. As is apparent from the foregoing description, my improved barrel and the nozzle may be put into enga ement with the transmission member with t e action of the one hand of the operator and without rotating the barrel or the actuating means supported by the barrel.

I claim as my invention,

1. In a grease gun connection, the combination of a barrel formed for engagement with a transmission member, a nozzle in the barrel, a cam member held for transverse movement on the barrel and in operative relation with the nozzle to move the nozzle forward, substantially as described.

2. In a rease gun connection, the combination of a barrel having a divided hook adapted to engage a transmission member, a nozzle in the barrel, a cam member held for transverse movement on the barrel and in operative relation with the nozzle to move the nozzle forward, substantially as described.

3. In a grease gun connection, the combination of a barrel formed for engagement with a transmission member, a nozzle in the barrel and having lugs extending outward through the barrel, a cam member hld for transverse movement on the barrel and in engagement with said lugs, substantially as described.

4. In a grease gun connection, the combination of a barrel formed for engagement with a transmission member, a nozzle in the barrel, a cam member held for transverse movement on the barrel and in operative relation with the nozzle tomove the nozzle bination of a barrel formed for engagement with a transmission member, a nozzle in the barrel, a cam member held for transverse Y movement on the barrel and in operative with the barrel relation with the nozzle to more the nozzle forward, and a spring in operative relation and the nozzle to tend to retreat the nozzle, substantially as described.

6. In a grease gun connection, the combination of a barrel formed for engagement with a transmisslon member, a nozzle in the barrel, a link-form cam member surrounding the barrel and held for transversemovement on the barrel and in operative relation with the nozzle to move the 'nozzle for- Ward, substantially as described.

7. In a grease gun connection, the combination of a barrel formed for engagement with a transmission member, a nozzle in the barrel, a link-form cam member surrounding the barrel and held for transverse movement on the barrel and in operative relation with the nozzle to move the nozzle forward and a ring screw threaded on the barrel and forming an adjustable abutment for said cam member, substantially as described.

8. In a grease gun connection, the com-'. bination'of a barrel formed for engagement with. a transmission member, a nozzle movable endwise in the barrel, operator-controlled means in operative relation with the barrel and the nozzle for moving the nozzle forward while the barrel is in engagement with the transmission member and at rest, substantially as described.

In testimony whereof I'have signed my name, this 30th day of August, in the year ofiie thousand nine hundred and twenty t ree. 4

HUGH W. SANFORD. 

